Attachment for adding-machines.



A. PEN TEGOST,

ATTAGHMENT FOR ADDING MACHINES.

APPLICATION FILED SEPT. 14, 1906.

910,848. Patented @1126, 1909.

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ATTACHMENT FOR ADDING MACHINES.

APPLICATION FILED SEPT. 14, 1906.

910,848. Patented Jan. 26, 1909.

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UN 1TH STATES .PATEN FFIQE,

ARTHUR PENTECOST, OF EAST ORANGE, NEW JERSEY, ASSIGNOR TO PIKE ADDINGMACHINE COMPANY, OF ORANGE, NEW JERSEY, A CORPORATION OF NEW JERSEY.

ATTACHIMENT FOB ADDING-MACHINES.

Specification of Letters Patent.

Patented Tan. 26, 1909.

Application filed September 14, 1906. Serial No. 334,662.

tachments for Adding-Machines, of which the following is aspecification.

The present invention relates to improve-.

ments in adding machines of that style or character which employ acarriage or platen carrier that is movable longitudinally to bring anyof several sections of the platen into alinement with the recording orprinting devices of the machine.

It has been heretofore proposedto attach to the frame of an addingmachine a bar having a plurality of notches formed in its upper edge andto provide the carriage'with a projecting tongue or finger adapted toenter said notches successively as the carriage is ad justed on'theframe. Such a notched bar is useful when a relatively wide sheet ofpaper 'is employed to receive the recordand the latter is arranged in aplurality of columns. When however arecord comprising but a singlecolumn is to be produced, and a relatively narrow strip or ribbon ofpaper is employed considerable care is required on the part of theoperator to properly position the carriage on the frame.

The object of the present invention is to rovide an improved. space barwhich is adustable upon the frame of the machine and can be quicklyarranged to adapt the carriage for use with either 'a narrow strip ofpaper or with a relatively wide sheet and which will insure a properpositioning of the platen when used with a narrow paper withoutparticular attention from the operator.

' In the accompanying drawingigure 1 is a rear elevation of an addingmachine having an embodiment of the present invent-ion applied thereto;Fig. 2 is a plan view of the ment of a pivotally mounted dog 2 thereonwith a bar 1 supported on the frame of the machine. Said bar has itsends suitably notched to receive a pair of pins or studs 4 projectingfrom the frame and is normally eld in engagement with said studs andprevented from moving vertically away therefrom byla pin 3 projectingrearwardly from the carriage, and across the upper edge of said bar.

In the upper edge of the bar 1 are formed a plurality of notches 6corresponding in number to the maximum number of columns into which therecord produced by the machine may be divided; and the dog 2 is adaptedto enter any of said notches. The space bar is also provided with anupwardly projecting stop '7 against which the dog 2 bears when thecarriage is positioned for use with a narrow strip of paper. This stop 7is carried by an arm pivotally-connected at one end to one face of thebar, as at 8, and having its other end connected with the bar by asuitable spring 9 which acts to hold the stop 7 above the bar. Theupward move mentof the stop 7 is limited by a stop pin 7 projecting fromthe bar 1 and about which the spring 9 extends in the embodiment of theinvention shown in the drawings It will be. understood that the lug 2must bear close againstthe stop 7 when the carriage is in properposition forv use with a narrow strip of pa er; and-some trouble hasbeen experience b operators moving the carriage against sai stop withsuch force as to cause a slight rebound before coming to rest, with theresult that the carriage would be left in a position at one side of thatde-' sired. To avoid this there is formed on the upper edge of the armcarrying the stop 7, and between saidstop and the spring pressed end ofthe arm, an inclined surface 7 which is se arated from the stop '7' by aspace or notci of such size as to receive the dog 2 on thecarriage. Whenthe carriage is moved to bring the lug 2 against the stop 7 the lug inpassing over the inclined surface 7 will depress said arm slightly,which, however, will immediately rise as the lug comesagai-nst the stop7 and into alinement with the notch separating said stop and inclinedsurface, thus positively preventing any rebound and hold mg the carriagein proper position.

The parts will operate inthe manner just described when the space bar isarranged as shown in Figs; 1 and and the record is to be produced on anarrow strip or ribbon of paper, or in other words when the carriage isto e retained in a single position throu 'hout the operation of themachine. In order to prevent the lug 2 from entering any of the notches6 in the space bar, at the left of the stop 7 in-Fig. 1, and to relievethe operator from any doubt as to the platen being in proper tpositionwhen the longitudinal movement 0 the carriage is arrested, a strip) 10is secured to the same face of the space ar as the arm carrying the stop7. The upper edge .of this strip is flush with the upper edge of thespace bar and the'lug-Z on the carriage moves along said strip and isthereby preed to be moved longitudinallyon t of an adjustable space baradapted when in one position to cooperate with the carriage vented fromentering any of thetnotches 6 in its travel toward the stop 7.

To adapt the carriage for use in making a record comprising severalcolumns, and with a sheet of paper, as distinguished from a singlecolumnrecord on a narrow strip of paper, the'carriage is moved to the leftsufficiently v far to bringthe pin 3 and lug or dog 2 beyondthe end ofthe space bar when the latter can be easily hfted from the supportingstuds 4' and reversed, or positioned as shown in Fig.

3. In'this arran ement of parts it will be seen that the carriage can beheld in any desired adjustment by causing the lug 2 to en ter the ropernotch 6. The stop 7 and strip 10 it W1 1 be seen are on the op osit sideof the space bar from the lug 2 wl fen the parts are 1n the positionshown in Fig. 3.and do not interfere at all with the movement oroperation of the lug 2. 4

The lug 2 may be rocked by an suitable means. As shown, it is carried ya rock shaft extending longitudinally of the carriageand rovided at oneend with an operating han e or crank arm 11.'

The manner of using and the advantages of the attachment will be readilyunderstood and appreciated from the foregoing description and thedrawing and itwi I be; seen that there can be modifications of some ofthe features described without departing from the invention.

' What is claimed is:

1. In an adding machine, the combination with the frame, and a platencarriage adapte frameand frame tomaintain said parts in a particularrelation and when adjusted to a .difierent position to maintain saidparts in any of a plurality of difierent relations.

=2. In an adding machine, the combination with the frame, and a platencarria e adapted to be moved longitudinally on t e frame, of anadjustable spacebar adapted when in one position to 006 erate with thecarriage and frame to holdt e carriagestaframe at any tion, ofa stoppivotal y mounte tionary on the frame at asingle point andwhen adjustedto a different position to permit the carriage to be held stationaryonthe frame at any one of a plurality of points.

3. In an adding machine, the combination with the frame, and a platencarriage adapted to be moved longitudinally on the frame, of anadjustable space bar adapted when in one position to cooperate with thetionary on the frame at a single point, and when adjusted to a differentposition to permit the carriage to be held stationary on the one of aplurality of points on opposite sides of the first said oint.

4. In an adding machine, t e combination with the frame, and a platencarriage adapted to be moved longitudinally on the frame, of anad'ustable space bar adapted carriage and frame to hold the carriagestato cooperate wit the carriage and frame to hold the carriage fromlongitudinal movement and having two independent and different series ofstops, whereby the ositions in which the carriage may be hel' on the edto be moved longitudinally on t e frame and having a rearwardl' extendinprojecon the frame of themachine' and having a notch adapted to receivesaid projection on the carriage, substantially as and for the purposedescribed.

. 7. In an adding machine, the combination with the frame, and a platencarriage adapted to be moved longitudinally on the frame and having arearwardly extending prpijection, of a stop mounted on the frame an 7adapted to engage opposite sides of said rojection on the carriage.

8. n anadding machine, the combination with the frame, and a platencarriage adaptedto be moved longitudinally on the frame and having a'rearwardly extending projection, of a'stop ed on the frame of t emachine and rovided with a pluralityofmotches each a apted' to thebaris'in one position, and a sto secured to said bar and adapted toexten into the path of said projection on the carriage when. the bar isin another position.

9. In an adding machine,- the combination with the frame, and a platencarriage adapted to .be moved longitudinally on the frame, of .two studsprojecting from the bar adjustably mountreceive said projection on thecarriage when frame, a space bar having its ends extending across saidstuds, ands projection on the carriage adapted to bear on the s .ace barand hold it in contact with the stus on-the frame.

'10. In" an adding machine, the combina-- tion with the frame and platencarriage adapted to be adjusted bodily onthe frame, of an adjustable sace har adapted when in one' position to ho d' the carriage and framerecord comprising a plurality of columns.

11. In an adding machine, the combina tion with the frame,the recordingdevices,

and platen carriage adapted to beadjusted to bring any desired sectionof the platen opposite the recording devices, of an adjusta e baradapted, when in one osition, to hold the carriage stationary w en aparticular section onlK of the platen is in operative relation to t erecording devices and,

when in a different position, to hold the car-- 25 riage stationary whenany one of a plurality of sections of the platen is in operativerelation to the recording devices. In testimony whereof I aflix mysignature in presence of two witnesses.

ARTHUR PENTECOST. Witnesses:

T. S. BYRNE, J. L.- WHITE.

